Quark deconfinement phase transition in nuclear matter for improved quark mass density-dependent model

TL;DR

This paper extends the IQMDD model to finite temperature and density to study quark deconfinement, providing critical parameters and insights into the QCD phase diagram.

Contribution

The paper introduces an extension of the IQMDD model to finite temperature and density, enabling analysis of quark deconfinement phase transition and QCD phase diagram.

Findings

Critical temperature and density for deconfinement are calculated.

The model successfully describes nuclear matter saturation properties.

It explains quark deconfinement within the extended framework.

Abstract

The improved quark mass density-dependent (IQMDD) model, which has been successfully used to describe the properties of both infinite nuclear matter and finite nuclei, is applied to investigate the properties of quark deconfinement phase transition. By using the finite-temperature quantum field theory, we calculate the finite temperature effective potential and extend the IQMDD model to finite temperature and finite nuclear matter density. The critical temperature and the critical density of nuclear matter are given and the QCD phase diagram is addressed. It is shown that this model can not only describe the saturation properties of nuclear matter, but also explain the quark deconfinement phase transition successfully.